Bathtub



FIG. 1 is a perspective view of a bathtub in accordance with my newdesign;

FIG. 2 is another perspective view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a top bottom view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken lines in the figures illustrate environmental structure onlyand form no part of the claimed design.

CLAIM The ornamental design for a bathtub, as shown and described.